Re: [ECOS] about the consoles input and read from modem

[xiaoyan wang <wang_xiaoyan79 at yahoo dot com>]

I use one serial port for GDB, the other one for my GM
module. there is no button let me input. 

anyway, I am trying to input using the other port
without module just like you mentioned. I can see the
output using function write(), but whatever i input,
the read() function does not work. nothing is returned
to my processor.

so could you tell me how to use the read() function to
get the inputting char.

thank you very much.

--- Chris Garry <cgarry@sweeneydesign.co.uk> wrote:
> You originally said your board has 2 serial ports,
> you could
> use one for the GDB connection and the other for
> input.
> You need to include the hardware device driver for
> the
> port you want to use for input, but not for the
> debug port.
> 
> Failing that you can use an Ethernet port for your
> GDB
> connection and free up both serial ports - that's
> the way
> I use my board all the time.  You will need to build
> a
> version of RedBoot with the networking enabled for
> this
> though.
> 
> Not sure about using JTAG, I've never tried it.  I
> think
> a search through the message archive should answer
> this
> question though.
> 
> Chris
> 
> ----- Original Message ----- 
> From: "xiaoyan wang" <wang_xiaoyan79@yahoo.com>
> To: "Andrew Lunn" <andrew.lunn@ascom.ch>
> Cc: <ecos-discuss@sources.redhat.com>
> Sent: Wednesday, November 27, 2002 2:24 AM
> Subject: [ECOS] about the consoles input and read
> from modem
> 
> 
> > Can I use JTEG or Internet to debug and use the
> serial
> > port to input? 
> > 
> > Do you know anything about the read() function?
> does
> > the eCos support the read() function? it is
> included
> > in unistd.h. In my application code, the processor
> can
> > write to but can not read from the modem. 
> > 
> > I used read as:
> > char *bufPtr;
> > char buffer[255];  
> > int fd;      
> > read(fd, bufPtr, buffer + sizeof(buffer) - bufPtr
> - 1)
> > 
> > Thank you for your help.
> > Wxy
> > 
> > --- Andrew Lunn <andrew.lunn@ascom.ch> wrote:
> > > You cannot use the serial port for both gdb and
> > > serial input to
> > > application code.
> > > 
> > > You either need to use another serial port, or
> not
> > > use gdb. Which
> > > ever, use the proper serial driver, not the HAL
> diag
> > > driver.
> > > 
> > >       Andrew
> > > 
> > > On Tue, Nov 26, 2002 at 05:14:36AM -0800,
> xiaoyan
> > > wang wrote:
> > > > Hi,
> > > > I am doing the programming on eCos.But now I
> need
> > > to
> > > > input something, I can not find where to
> input.
> > > The
> > > > consoles window can not input anything.
> > > > 
> > > > i use ARM7, one serial port is for remote
> module,
> > > the
> > > > other is for debug. When I ran command
> > > arm-elf-gdb,
> > > > the debug window will be opened. the consoles
> > > window
> > > > will show the "gdb>",I just can read the
> "printf"
> > > and
> > > > can not use "scanf" or "getchar" to input
> here.
> > > Could
> > > > you tell me how to input from consoles window?
> > > > 
> > > > Could you please kindly help me? I am very
> very
> > > > appreciated.
> > > > 
> > > > 
> > > > 
> > > > Best Regards
> > > > Wang xiaoyan
> > > > 
> > > > 
> > > > 
> > > > 
> > > >
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